package com.day22.PrintString;

public class PrinterDemo {
    public static void main(String[] args) {
        usePrinter(s -> System.out.println(s.toUpperCase()));
        PrintString ps = new PrintString();
        usePrinter(ps::printUpper);
    }

    private static void usePrinter(Printer p) {
        p.printUpperCase("HelloWorld");
    }
}
